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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> . 404 N W1get Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)791-0342 <br /> settler Ryan/Geostrategies »» » - Client Proj ID Unocal 5886, 180137 85- Sampled 06/17/98 <br /> ,747 Sierra Court Suite J Sample Descnpt MW-4S Received 06/17/98 - <br /> )ublin, CA 94568 Matrix LIQUID Extracted 06/24/98 <br /> Analysis Method EPA 8015 Mod Analyzed 06/26/98 <br /> ,ttention Deanna Harding Lab Number 9806C26-06 » Reported 07J09J98 <br /> O$atch Number GC0624980HBPEXZ - <br /> Arument ID GCHP19A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) with Silica Gel Cleanup <br /> ,nalyte Detection Limit Sample Results <br /> ug/L. ug/L <br /> 41PH as Diesel 50 N D <br /> ,hromatogram Pattern <br /> ,urrogates Control Limits % % Recovery <br /> -Pentacosane (C25) 50 150 68 <br /> • <br /> Oytes reported as N D were not present above the stated limit of detection <br /> EQUOIA ANALYTICAL - ELAP 41210 <br /> .Dcjftnicher <br /> Manager Page 15 <br /> I� <br />